Day 206 (9q12-9q21.11): a GAA repeat in frataxin that can hurt the mitochondria


Day 206 has 19 protein-coding genes (browser view) including FXN (frataxin). Frataxin handles iron in the mitochondrion.

FXN is named after a disease caused by the gene’s misregulation, Friedreich’s ataxia. It is caused by an expansion of a “GAA” repeat in the gene, which turns down expression of the gene.

Click here to see all 8649670 letters of Day 206 with the problematic GAA flashing.

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